Flushing device



D. E. GULICK.

FLUSHING DEVICE.

APPLICATION FILED JAN.21,1919.

1,437,650. Patented Dec. 5,1922.

2 SHEETSSHEET l INVE/VTUR 'M MTORNEY FLUSHING DEVICE.

Application filed January 21, 1919.

Z 0 all 20 ham it may canoe 1% Be it known that I, DAVID E. G'unioii, acitizen of the United States, residing at San Francisco, in the countyof San Francisco and State of California, have inventedcertain new anduseful Improvements in Flush- Devices, ofwhich the following is aspecification.

.This invention relates to water flushing devices, and pertainsespecially to certain features and modifications shown and described,but not claimed, in my Patent No. 1,297,886, dated March 18, 1919. Thisapplication also embodies certain new features and improvements over thedevice covered by said patent.

Two of the essential features of thisdevice consist of a loosely poisedpartition or movable division dividing a main easing into two chambersand forming a check valve, and means for controlling the movement of thepartition in a flushingoperation.

Other important features producing ad vantages and improved results inmanufacture and operation of this character of flushing devices, will berevealed in the specification to follow.

In the accompanying drawings forming part of this application: I

F ig. 1 is a vertical sectional view.

Fi 2 is a cross-section taken on the dotted line Z.A F ig. 1. i

Fig. 3 is a vertical sectional view'of a modification. i

Fig. 4 is a cross-section taken on the dotted line B-B, Fig. 3.

Fig. 5 is a detail sectional view showing a further modification. Fig. 6is a similar view of a further modification.

The same reference characters denote the same parts throughout theseveral views of the drawings.

The main body or casing l of this flush.- ing device has an inlet 2, anoutlet '3, and an initiating valve 4-. A removable cover or cap 5 issecured tot-lie casing 1 for closing this end of the casing, and saidcap .is of such shape or construction as to form, in part, a waterchamber 6 as clearly shown in Figs. 1 and 3 ofthe drawings. In attaching the cap or cover 5, a flexible diaphragm 7 is secured bet-ween thecasin and its cover, and forms an anchored partition having a movablecentral body, and separating the chamber 6 from an adjacent chamber 8.

Referring particularly to Fig. 1 of the sub-chamberslO and 11 by SerialNo. 272,294.

drawings, the casing comprising parts 1 and 5 is divided into two mainchambers by a non-flexible movable partition 17 looselv mounted in thecasing to allow the nassa e of fluid around its periphery from onecharliber to the other and to prevent return of the fluid in the sameway. The uppermaiir chamber is divided into two sub-chambers 6 and 8 bya flexible movable diaphragm 7. The lower main chamber is divided intotwo the movable partltlon 9. The piston is preferablv hollow orchambered as at 12, and has a hollow flanned nut 13 screwing into thepiston head for securing a piston gasket 14:. The piston has a mainvalve 15 overhanging and closing; on a seat 16 at the inner end of theoutlet .8, and within the chamber 11. The initiating; valve has aninwardly projecting stem 1 8 working through awater passage 19 forkeeping the latter open i i structions. Said passage 19 connects thechamber 11 with the initiating valve chamber 20, and this chamber isconnected with the top chamber 6 by a water passage 21. The valvechamber 20 is connected v ith the outlet 8 through theseat opening 22.of said valve by means of the passage and the chamber 10 has a bypassconnection 2% with the chamber 8, and said bypass is controlled 'by avalve such as 25.

As shown in Fig. 3 check partition 17 is of speclal shape, having adropped central member 26, provided with a screw duct 27,

and a flange 28 loosely fitting an annular and free from obgroove 29,adjacent to a flexible partition 30 upon which the piston valve 31 ismounted. so that the piston may work into the check partition, and thepartition member 26 may work into the piston. A water passage connectsthe inlet with the top chamber. and a water passage 33 connects theiuitd. .ingg' valve opening 34 with the outlet.

Referring to the modification shown in Fig. 5, the check partition 35has a depend;

ing socket 36 in which the stem 37, of the piston 37. works. This pistonforms a movable partition above the check partition and divides the topcasing 38 into two chambers 39 and 40. The partition 35 has a screw duct41.

Obviously the operation of the check partitions shown herein issubstantially the same, and the operation of the respective devices issubstantially the same in flushing operations.

